Page Mill Road Climb

We don't rate roads as safe or unsafe: crash counts can't say how risky a ride is, and roads people like to ride draw more riders, so they see more crashes. What the records show: 12 bike crashes were reported on or beside Page Mill Road along the climb from 2021–2025, 4 of them serious or fatal. The most were at Page Mill Rd & Via Ventana (5). Of the 6 where the cyclist's direction along the climb can be read, 6 were coming down and 0 going up.

1. 5 crashes · 2 serious or fatal

   Page Mill Rd & Via Ventana

   A mix of crash types

   See it on the map

How long and steep is the Page Mill Road climb?

11 miles (17.6 km) at 3.8% on average, climbing 2,211 ft (674 m) from 46 ft to 2,257 ft. The steepest half kilometre averages 11%. That makes it a Category 1 climb.

Where does the climb start and finish?

It starts at 37.41765, -122.14667, where Page Mill Road leaves Hanover Street, and tops out at Skyline Boulevard at 37.3149, -122.1866.

Is Page Mill Road paved?

Yes, by its OpenStreetMap tags.

How is the category worked out?

From the climb's shape only: length in metres × average grade (%) of 16,000 or more for Cat 3, 32,000 for Cat 2, 64,000 for Cat 1 and 80,000 for HC. It describes how hard the climb is, not traffic or crashes.

Where does this data come from?

The climb is found from OpenStreetMap roads and USGS 3DEP elevation (every climb, not a list of famous ones). Access is from OpenStreetMap tags; gates and closures change, so obey posted signs. Crash counts are police reports in the California Crash Reporting System (CCRS) on data.ca.gov, counted where their map location is within 100 ft of the climb. The forecast is from the National Weather Service.

• Alpine Road near Portola ValleyCat 2 · 6.3 mi at 3.6% · 1,188 ft · starts 2.9 mi away
• Moody RoadCat 3 · 2.8 mi at 4.1% · 614 ft · starts 4.2 mi away
• Los Trancos RoadCat 3 · 1.8 mi at 6.2% · 574 ft · starts 4.8 mi away
• Woodside RoadCat 2 · 8.1 mi at 3.3% · 1,401 ft · starts 5.2 mi away
• Old La Honda Road from Portola RoadCat 2 · 3.3 mi at 7.5% · 1,296 ft · starts 5.7 mi away
• Vista Verde WayCat 3 · 1.1 mi at 10.5% · 600 ft · starts 5.7 mi away
• Jefferson AvenueCat 3 · 2.5 mi at 4.5% · 587 ft · starts 6.6 mi away
• Kings Mountain RoadCat 2 · 4.9 mi at 6.4% · 1,654 ft · starts 6.7 mi away